diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index 50f6e739e88..ce9e5edf073 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -596,8 +596,8 @@ void BitcoinGUI::setClientModel(ClientModel *_clientModel, interfaces::BlockAndH
         connect(_clientModel, &ClientModel::numConnectionsChanged, this, &BitcoinGUI::setNumConnections);
         connect(_clientModel, &ClientModel::networkActiveChanged, this, &BitcoinGUI::setNetworkActive);
 
-        modalOverlay->setKnownBestHeight(tip_info->header_height, QDateTime::fromTime_t(tip_info->header_time));
-        setNumBlocks(tip_info->block_height, QDateTime::fromTime_t(tip_info->block_time), tip_info->verification_progress, false, SynchronizationState::INIT_DOWNLOAD);
+        modalOverlay->setKnownBestHeight(tip_info->header_height, QDateTime::fromSecsSinceEpoch(tip_info->header_time));
+        setNumBlocks(tip_info->block_height, QDateTime::fromSecsSinceEpoch(tip_info->block_time), tip_info->verification_progress, false, SynchronizationState::INIT_DOWNLOAD);
         connect(_clientModel, &ClientModel::numBlocksChanged, this, &BitcoinGUI::setNumBlocks);
 
         // Receive and report messages from client model
diff --git a/src/qt/clientmodel.cpp b/src/qt/clientmodel.cpp
index bb2073b9fea..c86cb16af66 100644
--- a/src/qt/clientmodel.cpp
+++ b/src/qt/clientmodel.cpp
@@ -216,7 +216,7 @@ bool ClientModel::isReleaseVersion() const
 
 QString ClientModel::formatClientStartupTime() const
 {
-    return QDateTime::fromTime_t(GetStartupTime()).toString();
+    return QDateTime::fromSecsSinceEpoch(GetStartupTime()).toString();
 }
 
 QString ClientModel::dataDir() const
@@ -294,7 +294,7 @@ static void BlockTipChanged(ClientModel* clientmodel, SynchronizationState sync_
 
     bool invoked = QMetaObject::invokeMethod(clientmodel, "numBlocksChanged", Qt::QueuedConnection,
         Q_ARG(int, tip.block_height),
-        Q_ARG(QDateTime, QDateTime::fromTime_t(tip.block_time)),
+        Q_ARG(QDateTime, QDateTime::fromSecsSinceEpoch(tip.block_time)),
         Q_ARG(double, verificationProgress),
         Q_ARG(bool, fHeader),
         Q_ARG(SynchronizationState, sync_state));
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index 393dca8ccd0..7b92ac9d132 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -81,7 +81,7 @@ QString dateTimeStr(const QDateTime &date)
 
 QString dateTimeStr(qint64 nTime)
 {
-    return dateTimeStr(QDateTime::fromTime_t((qint32)nTime));
+    return dateTimeStr(QDateTime::fromSecsSinceEpoch(nTime));
 }
 
 QFont fixedPitchFont(bool use_embedded_font)
diff --git a/src/qt/recentrequeststablemodel.h b/src/qt/recentrequeststablemodel.h
index b817b64e77b..01e1cee3172 100644
--- a/src/qt/recentrequeststablemodel.h
+++ b/src/qt/recentrequeststablemodel.h
@@ -28,7 +28,7 @@ class RecentRequestEntry
         unsigned int date_timet;
         SER_WRITE(obj, date_timet = obj.date.toTime_t());
         READWRITE(obj.nVersion, obj.id, date_timet, obj.recipient);
-        SER_READ(obj, obj.date = QDateTime::fromTime_t(date_timet));
+        SER_READ(obj, obj.date = QDateTime::fromSecsSinceEpoch(date_timet));
     }
 };
 
diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index e6e767c5afa..ce176484b02 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -646,7 +646,7 @@ void RPCConsole::setClientModel(ClientModel *model, int bestblock_height, int64_
         setNumConnections(model->getNumConnections());
         connect(model, &ClientModel::numConnectionsChanged, this, &RPCConsole::setNumConnections);
 
-        setNumBlocks(bestblock_height, QDateTime::fromTime_t(bestblock_date), verification_progress, false);
+        setNumBlocks(bestblock_height, QDateTime::fromSecsSinceEpoch(bestblock_date), verification_progress, false);
         connect(model, &ClientModel::numBlocksChanged, this, &RPCConsole::setNumBlocks);
 
         updateNetworkState();
diff --git a/src/qt/transactionfilterproxy.cpp b/src/qt/transactionfilterproxy.cpp
index a631f497af4..106995233b5 100644
--- a/src/qt/transactionfilterproxy.cpp
+++ b/src/qt/transactionfilterproxy.cpp
@@ -8,11 +8,12 @@
 #include <qt/transactionrecord.h>
 
 #include <cstdlib>
+#include <limits>
 
 // Earliest date that can be represented (far in the past)
-const QDateTime TransactionFilterProxy::MIN_DATE = QDateTime::fromTime_t(0);
+const QDateTime TransactionFilterProxy::MIN_DATE = QDateTime::fromSecsSinceEpoch(0);
 // Last date that can be represented (far in the future)
-const QDateTime TransactionFilterProxy::MAX_DATE = QDateTime::fromTime_t(0xFFFFFFFF);
+const QDateTime TransactionFilterProxy::MAX_DATE = QDateTime::fromSecsSinceEpoch(std::numeric_limits<qint64>::max());
 
 TransactionFilterProxy::TransactionFilterProxy(QObject *parent) :
     QSortFilterProxyModel(parent),
diff --git a/src/qt/transactiontablemodel.cpp b/src/qt/transactiontablemodel.cpp
index b68ceaedbba..23590ea4d24 100644
--- a/src/qt/transactiontablemodel.cpp
+++ b/src/qt/transactiontablemodel.cpp
@@ -610,7 +610,7 @@ QVariant TransactionTableModel::data(const QModelIndex &index, int role) const
     case TypeRole:
         return rec->type;
     case DateRole:
-        return QDateTime::fromTime_t(static_cast<uint>(rec->time));
+        return QDateTime::fromSecsSinceEpoch(rec->time);
     case WatchonlyRole:
         return rec->involvesWatchAddress;
     case WatchonlyDecorationRole:
@@ -630,7 +630,7 @@ QVariant TransactionTableModel::data(const QModelIndex &index, int role) const
     case TxPlainTextRole:
         {
             QString details;
-            QDateTime date = QDateTime::fromTime_t(static_cast<uint>(rec->time));
+            QDateTime date = QDateTime::fromSecsSinceEpoch(rec->time);
             QString txLabel = walletModel->getAddressTableModel()->labelForAddress(QString::fromStdString(rec->address));
 
             details.append(date.toString("M/d/yy HH:mm"));